Results 31 to 40 of about 3,313 (254)
Crustal thickness beneath the Ryukyu arc from travel-time inversion [PDF]
Earth, Planets and Space, 2009 Abstract First P-wave arrival times recorded by the seismic network in the Ryukyu arc were analyzed in order to image the lateral variation in crustal thickness beneath the Ryukyu arc. The results indicate a low P n velocity (7.5 km/s) in the Ryukyu arc and a relatively high P n velocity (7.9 km/s) in the Okinawa ...
Nakamura, Mamoru, Umedu, Nozomi
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Tectono-magmatic evolution of the Philippine Sea Plate: A review
Geosystems and Geoenvironment, 2022 The West Pacific Margin incorporates 75% of global marginal basins/back-arc basins. These basins and their adjacent trenches and island arcs constitute a huge trench-arc-basin system created by the interactions among three tectonic plates (the Pacific ...
Quanshu Yan +4 more
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Extension in the southern Ryukyu arc (Japan): Link with oblique subduction and back arc rifting [PDF]
Tectonics, 1999 Compilation of earthquake focal mechanisms, morphological analysis, and examination of mesofractures help to clarify the Cenozoic and recent stress history in the southern Ryukyu arc between the Ryukyu trench and the southern Okinawa Trough. (1) An older, pre‐Miocene, intermediate‐type stress field (vertical stress component σv = σ2) is attested by ...
Olivier Fabbri, Marc Fournier
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Back-arc opening and the mode of subduction [PDF]
, 1979 Trench-arc systems (subduction zones) can be classified into two types depending on whether or not actively opening back-arc basins are associated with them.
Kanamori, Hiroo, Uyeda, Seiya
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Estimating the horizontal and vertical direction-of-arrival of water-borne seismic signals in the northern Philippine Sea [PDF]
, 2013 Author Posting. © Acoustical Society of America, 2013. This article is posted here by permission of Acoustical Society of America for personal use, not for redistribution.
Baggeroer, Arthur B. +9 more
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Distribution of dissolved methane in seawater from the East China Sea to the Ryukyu forearc
Frontiers in Earth Science, 2023 Methane is a greenhouse gas, and the East China Sea acts as a source of emissions to the atmosphere. On the other hand, the distribution of methane concentration in the Ryukyu Arc shelf and forearc region has not been clarified.
Tomohiro Toki +4 more
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Double seismic zones and stresses of intermediate depth earthquakes [PDF]
, 1981 Data from Japanese local seismograph networks suggest that the stresses in double seismic zones are in-plate compression for the upper zone and in-plate tension for the lower zone; the stresses do not necessarily appear to be down-dip.
Fujita, Kazuya, Kanamori, Hiroo
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On the origin of the North Pacific arcs [PDF]
, 2004 We present a new hypothesis that relates global plate tectonics to the formation of marginal basins, island arcs, spreading ridges and arc-shaped mountain belts around the North Pacific Ocean.
Fornós, Joan J. +3 more
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Earth, Planets and Space, 2019 The Okinawa Trough, to the southwest of Kyusyu, Japan, is an active backarc basin of the Ryukyu (Nansei-Shoto) island arc–trench system caused by the Philippine Sea plate subduction. Unlike other backarc basins around Japan, the Okinawa Trough, ~ 1000 km
Azusa Nishizawa +5 more
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Rupture Process of Subduction-Zone Earthquakes [PDF]
, 1986 This review is primarily concerned with the rupture process of large subduction-zone earthquakes determined by various seismological methods, and with its interpretation in terms of an asperity model.
Kanamori, Hiroo
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